what went wrong

[whistlerskipro]

So after 48hrs of blanketing my tank, phosphates down from 2.5 to .25.
Ammonia, nitrates nitrites remain unchanged at 0
PH 8.1

I was lucky enough to be given another 20lbs of live rock bringing total to 65lbs, and another 4"LS.
Finally I added Sachem PhosGuard and Purgin and a sock of charcoal in a canister filter.
The tank remains very cloudy. Is this right?
Thanks everyone

Newbie